And Courteney wasn't the only one who enjoyed their reunion, as just seven hours after she'd posted the picture it had already received over 1 million likes from her followers on Instagram.
Some of her celebrity pals joined in the birthday fun, sending well wishes to the actress.
"What a great gift!! Happy Birthday CC ! 💖💖💖" Reese Witherspoon commented.
"Ah there you are! Happy birthday angel face," wrote Selma Blair, who stared with Courteney in 2016's Mothers and Daughters.
"LOVE you girls! Happy happy Court," said Lisa Kudrow said, commenting on the pic of herself and her friends before posting her own tribute to Courteney on Instagram.
"Just remembering Court, I will ALWAYS be older than you. HAPPY BIRTHDAY lovely Courteney!!" Lisa joked, alongside a pic of the pair taken with a crying eyed photo filter.
Fingers crossed these photos are a sign of things to come, and perhaps Matt Perry, Matt Le Blanc and David Schwimmer will join in the fun at their next reunion...
